Q: Is 128,779 a Prime Number?
A: No, 128,779 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 128779 can be evenly divided by 1 7 18,397 and 128,779, with no remainder.
Since 128,779 cannot be divided by just 1 and 128,779, it is not a prime number.